(adsbygoogle = window.adsbygoogle || []).push({}); [SOLVED] Volumes of Revolution

1. The problem statement, all variables and given/known data

find the volume of region A in the first quadrant that is inclosed in the parabola 2x(2-x) and the x-axis, of which is rotated around the axis y = -2.

2. Relevant equationsy=(4+2x^2) y= -2 piS(from 0 to 2) (R^2 - r^2)

3. The attempt at a solutionpiS(0 to 2)(4x + 2x^2 +2)^2 + (2^2)

piS(0 to 2) (4x^4 + 16x^3 + 24x^2 + 8x + 4) = (4x^3/3 + 16x^4/4 + 24x^3/3 + 8x^2/2 + 4x)|(0 to 2) from this you can plug in 2 to get 158pi obviously this is too large to be the area thus my dilemma. any help is appreciated thanks.

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# Homework Help: Volumes of Revolution

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